2006 Acura MDX ignition

If your vehicle battery has been
disconnected or gone dead, these
codes are erased. It takes at least
three days of driving under various
conditions to set the codes again.
To check if they are set, turn the
ignition switch to the ON (II)
position, without starting the engine.
The malf unction indicator lamp will
come on f or 20 seconds. If it then
goes of f , the readiness codes are set.
If it blinks f ive times, the readiness
codes are not set. If possible, do not
take your vehicle for a state
emissions test until the readiness
codes are set. Ref er tofor more
inf ormation (see page ).
If this indicator comes on
while driving, it means one
of the engine’s emissions control
systems may have a problem. Even
though you may f eel no dif f erence in
your vehicle’s perf ormance, it can
reduce your f uel economy and cause
increased emissions. Continued
operation may cause serious damage. If the indicator comes on repeatedly,
even though it may turn of f as you
continue driving, have the vehicle
checked by your dealer as soon as
possible.
Your vehicle has certain ‘‘readiness
codes’’ that are part of the on-board
diagnostics f or the emissions
systems. In some states, part of the
emissions testing is to make sure
these codes are set. If they are not
set, the test cannot be completed.
If you have recently ref ueled your
vehicle, the indicator could come on
because of a loose or missing f uel f ill
cap. Tighten the cap until it clicks at
least once. Tightening the cap will
not turn the indicator of f
immediately; it takes several days of
normal driving.
292
Malf unction Indicator L amp
Malf unction Indicator L amp
State
Emissions T esting
Readiness Code
T aking Care of t he Unexpect ed
273
If you keep driving with the
malf unction indicator lamp on, you can
damage your vehicle’s emissions
controls and engine. Those repairs may
not be covered by your vehicle’s
warranties.

The brake system indicator
normally comes on when
you turn the ignition switch
to the ON (II) position, and
as a reminder to check the
parking brake. It will stay
on if you do not f ully
release the parking brake.
If the brake system indicator comes
on while driving, the brake f luid level
is probably low. Press lightly on the
brake pedal to see if it f eels normal.
If it does, check the brake f luid level
thenexttimeyoustopataservice
station (see page ).
If the f luid level is low, take the
vehicle to your dealer and have the
brake system inspected f or leaks or
worn brake pads. However, if the brake pedal does not
f eel normal, you should take
immediate action. A problem in one
part of the system’s dual circuit
design will still give you braking at
two wheels. You will f eel the brake
pedal go down much f arther bef ore
the vehicle begins to slow down, and
you will have to press harder on the
pedal.
Slow down by shif ting to a lower
gear, and pull to the side of the road
when it is saf e. Because of the long
distance needed to stop, it is
hazardous to drive the vehicle. You
should have it towed, and repaired as
soon as possible.
If you must drive the vehicle a short
distance in this condition, drive
slowly and caref ully.
243
Brake System Indicator
Brake System Indicator
274
Canada
U.S.

If your vehicle needs to be towed,
call a prof essional towing service or
organization. Never tow your vehicle
with just a rope or chain. It is very
dangerous.
Any other method of towing will
damage the drive system. When you
contact the towing agency, inf orm
them a f lat-bed is required.If , due to damage, your vehicle must
be towed with all f our wheels on the
ground, do the f ollowing:
With all f our wheels on the ground,
it is best to tow the vehicle no farther
than 50 miles (80 km), and keep the
speedbelow35mph(55km/h).
The operator will load
your vehicle on the back of a truck. Release the parking brake.
Start the engine.
Shif t to D f or several seconds,
then to N.
Turn of f the engine.
The only way you can saf ely tow
your vehicle is with f lat-bed
equipment.
Emergency Towing
T aking Care of t he Unexpect ed
275
Towing your vehicle with two tires on
the ground will damage parts of the
4WD system. It should be transported
on a f lat-bed truck or trailer. Improper towing preparation will
damage the transmission. Follow the
above procedure exactly. If you cannot
shif t the transmission or start the
engine, your vehicle must be
transported with the all f our wheels of f
the ground.The steering system can be damaged if
the steering wheel is locked. Leave the
ignition switch in the ACCESSORY (I)
position, and make sure the steering
wheel turns f reely bef ore you begin
towing.
Trying to lif t or tow your vehicle by the
bumpers will cause serious damage.
The bumpers are not designed to
support the vehicle’s weight.

If something electrical in your
vehicle stops working, the first thing
youshouldcheckforisablownfuse.
Determine f rom the chart on pagesand , or the diagram on the
fuse box lid, which fuse or fuses
control that device. The diagram f or
theinteriordriver’ssidefuseboxis
on the kick panel below the f use box.
Check those f uses f irst, but check all
the f uses bef ore deciding that a
blown f use is the cause. Replace any
blown f uses, and check if the device
works.
Turn the ignition switch to the
LOCK (0) position. Make sure the
headlights and all other
accessories are of f .
Remove the cover f rom the f use
box. Check each of the large f uses in
the primary under-hood f use box
by looking through the top at the
wire inside. Removing these f uses
requires a Phillips-head
screwdriver.
Check the smaller f uses in the
under-hood f use boxes and all the
fuses in the interior fuse box by
pulling out each one with the f use
puller provided in the primary
under-hood f use box.
4.
3.
1.
2 279 280
Checking and Replacing Fuses
Fuses
T aking Care of t he Unexpect ed
277
BLOWN
FUSE PULLER

Thediagramsinthissectiongive
you the dimensions and capacities of
your vehicle, and the locations of the
identif ication numbers. It also
includes inf ormation you should
know about your vehicle’s tires and
emissions control systems.................
Identif ication Numbers . 282
................................
Specif ications .284
..........
DOT Tire Quality Grading . 286
Unif orm Tire Quality ..................................
Grading .286
.................................
Treadwear .286
......................................
Traction .286
.............................
Temperature .287
.................................
Tire Labeling .288 .......................
Emissions Controls .289
.....................
The Clean Air Act .289
Crankcase Emissions Control ....................................
System .289
Evaporative Emissions Control ....................................
System .289
Onboard Ref ueling Vapor ................................
Recovery .289
...
Exhaust Emissions Controls . 290
....................
PGM-FI System .290
Ignition Timing Control ................................
System .290
Exhaust Gas Recirculation ...................
(EGR) System . 290
Three Way Catalytic ...........................
Converter .290
....................
Replacement Parts . 290
..
Three Way Catalytic Converter . 291
..............
State Emissions Testing . 292
T echnical Inf ormation
Technical Inf ormation
281

The exhaust emissions controls
include f our systems: PGM-FI,
ignition timing control, exhaust gas
recirculation, and three way catalytic
converter. These f our systems work
together to control the engine’s
combustion and minimize the
amount of HC, CO, and NOx that
comes out the tailpipe. The exhaust
emissions control systems are
separate f rom the crankcase and
evaporative emissions control
systems.
The PGM-FI system uses sequential
multiport f uel injection.
It has three subsystems: air intake,
engine control, and f uel control. The
powertrain control module (PCM)
uses various sensors to determine
how much air is going into the
engine. It then controls how much
f uel to inject under all operating
conditions.This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
The exhaust gas recirculation (EGR)
system takes some of the exhaust
gas and routes it back into the intake
manif old. Adding exhaust gas to the
air/f uel mixture reduces the amount
of NOx produced when the f uel is
burned.
The three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine’s exhaust
to carbon dioxide (CO ), nitrogen
(N ), and water vapor.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more informa-
tion. The emissions control systems are
designed and certif ied to work
together in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Acura replacement parts or their
equivalent f or repairs. Using lower
qualitypartsmayincreasethe
emissions f rom your vehicle.
2
2
Emissions Cont rols
Exhaust Emissions Controls Replacement Parts
PGM-FI SystemIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
290

Select a nearby lightly traveled
major highway where you can
maintain a speed of 50 to 60 mph
(80to97km/h)foratleast20
minutes. Drive on the highway in
D. Do not use the cruise control.
When traffic allows, drive for 90
seconds without moving the
accelerator pedal. (Vehicle speed
may vary slightly; this is okay.) If
you cannot do this f or a
continuous 90 seconds because of
traf f ic conditions, drive f or at least
30 seconds, then repeat it two
more times (for a total of 90
seconds).
Then drive in city/suburban
traffic for at least 10 minutes.
When traf f ic conditions allow, let
the vehicle coast f or several
seconds without using the
accelerator pedal or the brake
pedal.Stop the vehicle, turn of f the
ignition switch, and leave it of f f or
30 minutes.
If the testing f acility determines the
readiness codes are still not set, see
your dealer.
State Emissions T esting
Technical Inf ormation
293

CONT INUED
...
Accessories and Modif ications . 193
ACCESSORY (Ignition Key .......................................
Position) .81
............
Accessory Power Sockets . 104
....................
Additives, Engine Oil . 238
.............................
Airbag (SRS) .11, 24
..............
Air Conditioning System . 106
.....................
Rear A/C Control .111
.........................................
Usage .107
.......................
Air Outlets (Vents) .108
.......................
Air Pressure, Tires .252
......................................
Antif reeze .240
Anti-lock Brakes (ABS) ....................
Indicator Light .61, 211
...................................
Operation .211
..............
Anti-thef t, Audio System . 131
.
Anti-thef t Steering Column Lock . 81
................
Audio System . 112,118,123
...
Automatic Seat Belt Tensioners . 22
.........................
Automatic Lighting .75
.............
Automatic Speed Control . 146
..............
Automatic Transmission . 202
..........................
Capacity, Fluid .284
...............
Checking Fluid Level . 242.......................................
Shif ting .202
.
Shif t Lever Position Indicator . 202
................
Shif t Lever Positions . 202
....................
Shif t Lock Release . 205
...........................
Automatic Wipers .72
Battery Charging System ...........................
Indicator .60, 272
............................
Jump Starting .268
..............................
Maintenance .257
............................
Specif ications .285
..............................
Bef ore Driving .187
..................................
Belts, Seat .10, 21
.........................
Beverage Holders .102
..................................
Booster Seats .51
Brakes ...........
Anti-lock System (ABS) . 211
.............
Break-in, New Linings . 188
...........................................
Fluid .243
....................
Bulb Replacement .247
.........................................
Parking .94
.................
System Indicator . 61,274
........................
Wear Indicators .210 .............................
Braking System .210
.................
Break-in, New Vehicle . 188
..
Brightness Control, Instruments . 76
........................
Brights, Headlights .74
Bulb Replacement ..........................
Back-up Lights .247
..............................
Brake Lights .247
................
Front Parking Lights . 246
........
Front Side Marker Lights . 246
.................................
Headlights .245
.........
High-mount Brake Light . 248
.................................
Rear Bulbs .247
............................
Specif ications .285
....................
Turn Signal Lights . 246
..............................
Bulbs, Halogen .245
Index
A
B
INDEX
I